Hi Michael the silverwork could be done everywhere so that is hard to say but it looks more like an Mandaya I had an Mandaya dagger blade did looks a lot like this one .
Kampilan was also in Use by the seadayaks but is not from borneo even moro kriss can be find on Borneo but not really made on borneo the base for the handle is different from the spears on borneo or knife"s
I have an parang sangkit from north borneo but with an moro binding on the hilt like an moro kris but typical parang sangkit blade
I just wanna says if it is a mixed up difficult to say but the blade is not typical borneo style an the handle also not the silver maybe .
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